The boosted Higgs analysis, in combination with jet substructure techniques effectively suppress the initially overwhelming backgrounds for the \(t \bar{t} h\)  signal with the dileptonic top decays and \(h\rightarrow b\bar{b}\) , as first shown in Ref. [1]}. Here we follow a similar strategy. We start our analysis requiring two isolated and opposite sign leptons with \(p_{T\ell } >10\)  GeV and \(|\eta _\ell |<3\) . For the hadronic component of the event, we first reconstruct jets with the Cambridge-Aachen algorithm with \(R=1.2\)  [2]}, requiring at least one boosted fat-jet with \(p_{TJ}>200\)  GeV and \(|\eta _J|<3\) . We demand that one of the fat-jets be Higgs tagged with the Butterworth-Davison-Rubin-Salam (BDRS) algorithm [3]}, [4]}. Among the three filtered jets, the two hardest are required to be \(b\) -tagged. As our final state displays in total four \(b\) -tagged jets, we exploit the improvements in the central tracking system, that will be in operation for the HL-LHC run, to enhance the event rate for our signal. Based on the ATLAS report [5]}, we assume 85% \(b\) -tagging efficiency and 1% mistag rate for light-jets.
